157273057 has 8 divisors (see below), whose sum is σ = 165957120. Its totient is φ = 148742880.

The previous prime is 157273033. The next prime is 157273073. The reversal of 157273057 is 750372751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157273057 - 2¹⁹ = 156748769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157276057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36369 + ... + 40462.

It is an arithmetic number, because the mean of its divisors is an integer number (20744640).

Almost surely, 2^157273057 is an apocalyptic number.

It is an amenable number.

157273057 is a deficient number, since it is larger than the sum of its proper divisors (8684063).

157273057 is an equidigital number, since it uses as much as digits as its factorization.

157273057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76943.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 157273057 is about 12540.8555130820. The cubic root of 157273057 is about 539.7816412528.

The spelling of 157273057 in words is "one hundred fifty-seven million, two hundred seventy-three thousand, fifty-seven".